Guide for Diagnosing Plant Problems

Hey BlueB, looks a bit like light bleaching to me but I couldn't say for sure. What do you have for lights and how close are they ? Here is a link to a really good problem guide, it seems to cover most anything.
http://www.icmag.com/ic/showthread.php?t=11688

Im really bummed im a newbi and have done all my resurch on this site from lighting to soil and maintence but my big girl has yellow and brown tips all over the only actual yellow leaves are at the very bottom om the plant all my other leaves have their tips yellow and brown please help i thought nut burn but i flushed the plan and seems it has gotten worse shes in her first week of flowering i have her under 2 14w 2700 cfl and 3 23 w flood 2700 w cfls and on 18inch 4100k fluro im using soil ment for outside i believe miricle grow outdoor soil its all i had oh and reason i thought it was burned was cause i bought those cheap fert spikes from walmart called jobes but i flushed and seems to be getting worse please help if u can hit me up on my profile id be most thankful i really dont wanna lose her but its a learning experiance for me i also have 4 babies in vegging under 3 4ft 5000k fluros with 2 23w 6700k cfls i havent used any nutes beside the one spike should i flush again or what please help

Hey polarbear, the miracle gro has time release nutes in it and flushing it might not really work and could make it worse by disolving more of those into the soil. I would get rid of the Jobes spikes like you did. Pics always help when you can so we can see them for ourselfs. But from what you say, the yellow/brown tips sound like nute burn. I know some times we have to use what we can but I would not use the miracle grow soil and use something that you have more control of (the nutes). It's best to get something that is more geared to the plants we love. I personally like the foxfarm soil, But use Canna nutes. But foxfarm makes good nutes too. I wouldn't worry to much about the yellow leaves on the bottom at this point, At this point with flowering starting they can begin to lose the bottom leaves as they start to flower, the plant doesn't need them anymore and will begin to drop them and that's just normal, you'll see a lot of them go before they are done. I would just keep watering them with plain water and keep an eye in them for any other changes. Here is a really good plant problem guide that might help too. http://www.icmag.com/ic/showthread.php?t=11688

Thanks bro yea I didn't think of that I actuallly flushed it twice seems to be doing well her bottom is turning a bright yellow and dying off tips are still yellow but she does have new growth her buds are starting to show and she's full of white hairs my three babies are coming along great also I'm working on pics hopefully soon

I'm glad it's working out for you. Ya, it would be nice to see some pics. Good luck.

my stems are purple and its not from genitics! any body know of this

Have you looked through this:http://www.icmag.com/ic/showthread.php?t=11688
How do you know it's not from genetics ? Sometimes they'll do what you don't expect.

i had purp stems in my clones not to long ago it is because of soil ph i flushed to fix the soil ph then used gh's grow 1/2 strength mix and the were back alive in 4-5 days

Sir, that is a beautiful guide. Thank you.

hey i have a question if anyone can help i am growing in rdwc and one of my systems keeps dropping ph levels how can i fix this cause ph up isnt cheap lol

Hey stoneguy, I can't say off the top of my head buy do a Google search on it. There are household items that you can use to raise and lower your PH. Like baking soda, vinegar etc.

stoneyguy84 said:

hey i have a question if anyone can help i am growing in rdwc and one of my systems keeps dropping ph levels how can i fix this cause ph up isnt cheap lol

Click to expand...

Baking soda works as ph up. if you use just a pinch per gallon.(literally, just a pinch!) Like half teaspoon per five gallons water, per point increase, is what i have experienced.

ok but i wonder what is causeing suck a ph drop last inght the ph was a good 5.8 where i wanted it and this morning it is 5.0 i dont know y it keeps dropping

I was having a problem when I was doing hydro but it was the PH going up really quick, I blamed it on the temp being to high. Some nutes like Canna have something in them to help keep the PH in check. What kind of nutes do you use ?

I saw this today, and wanted to add it.

View attachment 2126764

i am useing gh 3part with call mag and silica blast and kool bloom and i have a nother question what is a good humidy during dark time i have some pretty dense nugs and plenty of air flow so when the likght and and co2 are on my humidy is like 45 but during dark time its 59 or 60

Hey mates! I got a problem, some of my plants look like this and some of them looks like this the second one is too much fertilizer right? can i save it? and the first one i dont know what it is, brown sparkly spots.. PLease help me, this is my first time. I used cow shit fertilizer.

On my first grow this helped my out a bunch, i actually drew the graph out onto paper its still up in my closet, check out the link below


http://www.greenmanspage.com/guides/tables.html


Re-vegging is good times

Hello people,
I have a plant which i thing is suffocating and i am not able to find perlite to mix into soil. so what i can do though mix the soil with the eps foam which i have at home at the moment. so do you thing that would damage the soil or the plant and if not do you think it would do the job ??

sweet TY now of corse the correct way to deal with it...what takes care of mag def.?